Selma, a Czech immigrant on the verge of blindness, struggles to make ends meet for herself and her young son, who has inherited the same genetic disorder and will suffer the same fate without an expensive operation. When life becomes increasingly difficult, Selma learns to cope through her love of musicals, dreaming up little numbers ...

Leonard Shelby is tracking down the man who raped and murdered his wife. The difficulty of locating his wife's killer, however, is compounded by the fact that he suffers from a rare, untreatable form of short-term memory loss. Although he can recall details of life before his accident, Leonard cannot remember what happened fifteen minu...

Chris, a former tennis pro, takes a job as an instructor and befriends his wealthy young student, Tom. After being introduced to his family, Chris is soon engaged to Tom's sister, Chloe. Despite the professional and financial advantages that this relationship affords him, Chris becomes obsessed with Tom's fiancee, American actress Nola.

The starship Enterprise and its crew is pulled back into action when old nemesis, Khan, steals a top secret device called Project Genesis.

Prot is a patient at a mental hospital who claims to be from a far away planet. His psychiatrist tries to help him, only to begin to doubt his own explanations.